Units of Measure Library for .NET

<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="UnitsOfMeasureLibrary"
    targetNamespace="http://www.hediet.de/xsd/unitlibrary/1.0" elementFormDefault="qualified"
    xmlns="http://www.hediet.de/xsd/unitlibrary/1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:simpleType name="UnitAbbreviation">
    <xs:annotation>
      <xs:documentation xml:lang="en">The representation of a Unit abbreviation.</xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:string">
      <xs:pattern value="[\S]+"/>
    </xs:restriction>
  </xs:simpleType>


  <xs:element name="UnitLibrary">
    <xs:complexType>
      <xs:sequence>
        <xs:choice maxOccurs="unbounded">
          
          <xs:element name="BaseUnit">
            <xs:complexType>
              <xs:attribute name="Name" type="xs:string" />
              <xs:attribute name="Abbr" type="UnitAbbreviation" />
            </xs:complexType>
          </xs:element>
          
          <xs:element name="ScaledShiftedUnit">
            <xs:complexType>
              <xs:attribute name="Name" type="xs:string" />
              <xs:attribute name="Abbr" type="UnitAbbreviation" />
              <xs:attribute name="Factor" type="xs:double" />
              <xs:attribute name="Offset" use="optional" type="xs:double" />
              <xs:attribute name="UnderlayingUnit" type="UnitAbbreviation" />
            </xs:complexType>
          </xs:element>

          <xs:element name="DerivedUnit">
            <xs:complexType>
              <xs:sequence>
                <xs:element name="UnitPart" minOccurs="1" maxOccurs="unbounded">
                  <xs:complexType>
                    <xs:attribute name="Unit" type="UnitAbbreviation" />
                    <xs:attribute name="Exponent" type="xs:byte" />
                  </xs:complexType>
                </xs:element>
              </xs:sequence>
              <xs:attribute name="Name" type="xs:string" />
              <xs:attribute name="Abbr" type="UnitAbbreviation" />
            </xs:complexType>
          </xs:element>
          
        </xs:choice>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>